How to stop annoying robocalls on your iPhone or Android phone

Update May 10th 9:30AM ET: This article was originally published on March 6, 2018 and has been updated to include video.

Mobile spam calls have been a nuisance for years, but over the last few months, it’s felt to me like there’s been a surge of them. I get between four and six calls daily, and a quick survey of friends shows that I’m not alone. Every waking day brings with it a new barrage. Robocallers have upped their game by masking their spam with local, genuine-looking phone numbers. Sometimes their nonsense is amusing — like when you get a threatening voicemail about your impending arrest over owed back taxes — but the vast majority of the time, it’s an unwelcome distraction. It’s all too easy for these scammers to wield the power...